Decorator.java

package shape;

import javafx.geometry.Point2D;
import javafx.scene.canvas.GraphicsContext;

public abstract class Decorator implements Shape {
    protected Shape decoratedshape;
    public Decorator(Shape decoratedShape) {
        this.decoratedshape = decoratedShape;
    }
    @Override
    public int pointsCount() {
        return decoratedshape.pointsCount();
    }

    @Override
    public Point2D point(int index) {
        return decoratedshape.point(index);
    }

    @Override
    public void draw(GraphicsContext context) {
        decoratedshape.draw(context);
        drawDecoration(context);
    }
    protected void drawDecoration(GraphicsContext context) {

    }
}